E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/60 (2006.01) E21B 17/10 (2006.01) E21B 7/06 (2006.01)
Patent
CA 2741618
The present invention provides anti-whirl drill bits, wellsite systems, and methods of using the same. One embodiment of the invention provides a drill bit (105) including an interior cavity in fluid communication with a drill string and a first gauge pad (206a) located on the exterior of the drill bit. The first gauge pad includes a first orifice (212) in fluid communication with the interior cavity. The drill bit is configured such that a fluid continuously flows from the first orifice.
La présente invention porte sur des trépans anti-tourbillonnement, sur des systèmes pour emplacement de puits et sur des procédés pour leur utilisation. Un mode de réalisation de l'invention présente un trépan (105) comprenant une cavité intérieure en communication fluidique avec un train de tiges de forage et une première plaquette de calibrage (206a) disposée à l'extérieur du trépan. La première plaquette de calibrage comprend un premier orifice (212) en communication fluidique avec la cavité intérieure. Le trépan est configuré de telle sorte qu'un fluide s'écoule de façon continue à partir du premier orifice.
Boualleg Riadh
Haugvaldstad Kjell
Sindt Olivier
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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